Design And Research On Accelerometer Compensation System Based On DSP

Accelerometer is important inertial navigation system, an inertial sensor. and vector output proportional to the acceleration or a relationship. Therefore, the accelerometer output accuracy directly affect the accuracy of inertial navigation systems. In addition to the acceleration of precision manufacturing and subject to the inherent characteristics of the design process, the internal structure of their own performance, also tested its accuracy and the environment when factors. Therefore, the accelerometer, the environmental temperature is the main reason for its accuracy. Through studying mathematical model accelerometer with temperature changes in the law designed to DSP core temperature compensation system. be real-time compensation, the accelerometer output to improve accuracy.This paper mainly on the following main elements :First, in accordance with temperature compensation systems. The various modules of the system hardware design. In a complete hardware system based on the temperature compensation system software design.Secondly, the system software and hardware design basis, Quartz Accelerometers a static model identification and temperature compensation for temperature error; Through the "static roller 1g acceleration of gravity experiment." quadratic function least squares polynomial fitting and application method, the temperature accelerometers static model; Application acceleration model for the static temperature compensation for temperature error, model accuracy improved significantly.Finally, the hardware circuit design, printed circuit board design and software production. The reliability of the system design, the specific design ideas and methods. In this paper, through the completion of the inertial navigation system and the acceleration of temperature compensation system with a more comprehensive understanding After the laying of a solid foundation for better research.